<!--
 * @Description: 
 * @Author: wanggang
 * @Date: 2019-12-25 10:55:36
 -->
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        html,body {
            padding: 0;
            margin: 0;
        };
        .test{
            position: absolute;
            top: 20px;
            left: 200px;
            width: 60px;
            height: 60px;
            background: bisque;
        }
        img {
            width: 100%;
            height: 100%;
            filter: grayscale(100%);
        }
    </style>
</head>
<body>
    <div class="test">
        <img src="/image/miniIcon.png">
    </div>
</body>
</html>